Cadillac Repair: 1998 Cadillac Deville Rear end riding low, cadillac deville, speed bumps

Question
I have a problem with the rear end of my 98 Deville riding low and as a result I avoid speed bumps and the like.  I plan on taking the vehicle to be repaired but just wanted the heads up on what could be causing the problem and what the possible cost are?

Thanks

Answer
The most common fault is the HEIGHT SENSOR.

You will need several pictures with directives of which can't be done on this website which only allows one picture. as this website is not mine,  You will have to e-mail: onlineautohelp@msn.com in order to obtain the information.